Breaking a religious doctrine is not something that serious in my old world, but that is because everyone is normal people, I don't even know if there was a God in my old world.
But in this universe it is different, for normal people, being part of a religion makes the person able to receive Divine protection that becomes more or less dependent on the person's Faith in the God of the Religion, it can range from a slightly better resistance to hunger, better adaptation to a specific climate, better learning capabilities or even better talent in some field.